Oiling textile threads



y 4-, A. J. L. MORITZ OILING TEXTILE THREADS Filed Aug. 8, 1933INVENTORL TTORNEYS.

Patented July 10, 1934 UNITED STATES OILING TEXTILE THREADS Adrianus J.L. Moritz, Buncombe County, N. 0., assignor to American EnkaCorporation, Enka, N. C., a corporation of Delaware Application August8, 1933, Serial No. 684,271

6 Claims.

The present invention relates to oiling textile threads, and moreparticularly to oiling artificial silk, the oiling operation beingpreferably combined with the twisting operation. The invention is basedupon the use of a sleeve or more or less tubular piece of sheet-formmaterial such as a cloth tube, which is placed upon the twisting spindleinside of the twisting spool, which spool has a perforated core so thatoil can travel 10 from the cloth tube through the perforations into thetextile thread being wound upon the twisting spool. The centrifugalaction is caused by rapid rotation of the twisting spool. In this mannerthe thread is suitably oiled, during the operation of being twisted,thereby eliminating a separate oiling operation, and thereby effectingan economy in the artificial silk manufacture.

According to the spool spinning-method a great number of filaments aredrawn from separate holes in a spinnerette, through a suitable settingbath, and through washing and desulphurizing baths if desired, thesethreads traveling to a winding spool, which rotates at a predeterminedperipheral speed, until the spool is completely filled with theuntwisted thread. According to the spinning can spinning method thethread after leaving the spinnerette and the setting bath (andoptionally the washing baths and desulphurizing bath) travels to therapidly rotating 3() bowl of a centrifugal machine, in which the athread is deposited in the form of a cake of twisted thread.Subsequently the thread from the first mentioned process has to'be giventhe desired twist. In both cases the thread is subsequently treated witha small amount of an oily material, such as coming oil for purposes wellunderstood in the art.

In accordance with the present invention however, an oiling is performedpreferably while the thread is undergoing the twisting operation toimprove the formation of "the twisting package and running qualities ofthe yarn from the spun package. The twisting apparatus consists of aspindle carrying a spool, which spool, in the present case should have aperforated core so that oil can travel through the perforations, intothe thread as it is being unwound from the spinning spool. thread isbeing unwound therefrom, whereby the thread is given the desired amountof twist, pre--- determined for the particular kind of artificial threadbeing operated upon. In accordance with the present invention a piece ofcloth, which may be'in the form of a tube initially, is soaked in amixture of the desired oils which are to be used The spinning spoolrotates freely as'the for that particular thread. The cloth tube,carrying an excess of oil is then usually pressed down to the desiredoil content, in any suitable manner, as by being run through a pair ofpressure rolls, the pressure being so adjusted as to leave the preferredamount of oil in the cloth tube. The said cloth tube is then placed upona rotatable spindle, and the spinning spool is then placed on thisspindle, outside of the cloth tube. In a modified form of execution oftheprocess, the cloth may be a plain strip of cloth, of such a size thatwhen wound around the spindle, it forms a cloth tube.

Apparatus as shown in the annexed drawing can be used for carrying outthe process. Said drawing shows the-apparatus in vertical elevation,parts being broken away for clarity of illustration. In said drawing, 1represents the rotating spindle, 2 is the whorl of same, 3 is the overflange, 4 is the skinning spool, with an upper. flange or cap 5, and 6is the cloth sleeve.

The winding and twisting operations are performed in the ordinarymanner, the rapid rotation of the cloth tube, on the spindle, about itslongitudinal axis causes the oil to fiow from the said cloth tube intothe thread which is being twisted and wound upon the twisting spool. Thecloth for the cloth tube is of course selected to hold the desiredamount of oil by impregnation and squeezing, to oil the amount of threadwhich is to be twisted and wound upon the said twisting spool.

Without restricting the invention to a particular oil to be used in theprocess, the following example is given of a suitable oil forimpregnating the cloth tube 6, which was found to .be'extremelypractical to use upon 100 denier 40 filament rayon lustrous yarn;

Acid free, straw color mineral lubricating oil, flash point around 180C., viscosity Saybolt sec. at 100 F., 99 to 99.5%. Oleic acid 0.5 to 1%v(by weight).

When the treated silk is subsequently treated with an alkaline solution,(e. g. the desulphurizing bath) the oleic acid reacts with the alkali toform a soap which emulsifies the mineral oil, and assists in removal ofthe latter.

During the high speed rotation of the spinning spool, the amount of oilwhich leaves the clothtube becomes very uniformly distributed throughthe rayon thread as it is being unwound from the spinning spool, bycentrifugal force and capillarity.

The twister packages" namely the twisted thread upon .the twistingspool, is then in a condition to be readily wound into suitable cops orreeled into skeins for further treatment.

I claim:-

1. A process of oiling textile thread on a perforated spool, whichcomprises placing inside said spool a cylindrical sleeve of a sheet-formmaterial impregnated with an oil, and thereafter rotating said spoolabout its axis, together with the sleeve at. a suificient speed to forceoil to leave said impregnated sleeve of sheet-form material and to causesame to travel into the said thread on said spool.

2. A process of oiling textile thread on a perforated spool, whichcomprises placing inside said spool a cylindrical sleeve of a sheet-formmaterial impregnated with an oil, and thereafter rotating said spoolabout its axis, together with the sleeve at a suflicient speed to forceoil to leave said impregnated sleeve of sheet-form material and tocause'same to travel into the said thread on said spool, said operationbeing combined with a twisting treatment of the said thread.

3. A process of oiling artificial cellulosic thread on a perforatedspool, which comprises placing inside said spool a cylindrical sleeve ofa sheetform material impregnated with an oil, and thereafter rotatingsaid spool about its axis, together with the sleeve at a sufficientspeed to force oil to leave said impregnated sleeve of sheet-formmaterial and to cause same to travel into the said thread on said spool.

in the reticulated spool when rotated by the spinv dle whereby whenthread is unwound from the reticulated spool during the rapid rotationthereof oil will be caused to be passed through the openings in thespool and to be distributed within the thread mass.

5. In an apparatus for oiling artificial silk threads and the like, arotatably mounted spool having a reticulated core, and rotatableabsorbent oil impregnated means arranged within the core for efiectingthe discharge of oil through the core openings when the spool isrotated, whereby when thread is unwound from the reticulated core duringthe rotation of the spool oil will be caused to be distributed withinthe thread mass.

6. A process of oiling textile threads on a perforated holder whichcomprises the introduction of an absorbent source of supply of apredetermined amount of oil within said holder, and thereafter rotatingsaid holder with the oil source at a suficient speed to force the oilthrough the perforations of the holder and cause same to impregnate thethread.

ADRIANUS J. L. MORITZ.

